#1F604D
Closest named color: Dark Green Blue (#1F6357). oklch(44.2% 0.073 170.2), rgb(31, 96, 77).
Aa
White text reads best on this color (7.39:1).
About this color
#1F604D is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 44%, its chroma 0.073 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.016 away. White text reads best on it, at 7.39:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.83:1 |
| White text | 7.39:1 |
Values
| HEX | #1F604D |
| RGB | rgb(31, 96, 77) |
| HSL | hsl(162, 51%, 25%) |
| OKLCH | oklch(44.2% 0.073 170.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #1F604D | 7.39:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #1F604D | 2.83:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #1F604D text on white | 7.39:1 | AAA | Lc 85.5 | Fine for body text |
| #1F604D text on black | 2.83:1 | Fails | Lc -16.6 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CBDED7
oklch(88.4% 0.022 171.7)
-
Step 300
300
#A6CABC
oklch(80.9% 0.043 169.6)
-
Step 400
400
#74AF9A
oklch(70.7% 0.069 169.9)
-
Step 500
500
#4C9B82
oklch(63.2% 0.088 170.4)
-
Step 600
600
#2A856B
oklch(55.6% 0.094 170.2)
-
Step 700
700
#1A7159
oklch(49.2% 0.089 169.8)
-
Step 800
800 (this color)
#1F604D
oklch(44.2% 0.073 170.2)
-
Step 900
900
#1D4B3D
oklch(37.6% 0.056 170.5)
-
Step 950
950
#122C24
oklch(27% 0.036 171.2)
#1F604D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #5D594C | 0.074 |
| Deuteranopia (no green cones) | #54534E | 0.071 |
| Tritanopia (no blue cones) | #00615B | 0.023 |
| Achromatopsia (no color) | #555555 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F604D
#1F604D
oklch(44.2% 0.073 170.2)
- #714259
#714259
oklch(44.3% 0.072 349.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #1F604D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.016
- Pine #2B5D34 ΔE 0.035
- Spruce #0A5F38 ΔE 0.036
- Dark Aqua #05696B ΔE 0.047
- Petrol #005F6A ΔE 0.049
- Dark Blue Green #005249 ΔE 0.051
- Deep Teal #00555A ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.058
Use #1F604D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.